Issue #12381 has been updated by Toru Iwase.


SSLContext#dup is not fixed yet?

```
$ RBENV_VERSION=2.4.0-dev ruby -v -ropenssl -e 'c = OpenSSL::SSL::SSLContext.new; c.ciphers = "aNULL"; p c.ciphers == c.dup.ciphers'
ruby 2.4.0dev (2016-08-03 trunk 55810) [x86_64-linux]
false
```


----------------------------------------
Bug #12381: ext/openssl classes' dup/clone don't work well
https://bugs.ruby-lang.org/issues/12381#change-59944

* Author: Kazuki Yamaguchi
* Status: Closed
* Priority: Normal
* Assignee: openssl
* ruby -v: 
* Backport: 2.1: WONTFIX, 2.2: REQUIRED, 2.3: REQUIRED
----------------------------------------
They don't copy the underlying C level structures.

~~~ruby
ssl_ctx = OpenSSL::SSL::SSLContext.new
ssl_ctx.ciphers = "aNULL"
p ssl_ctx.ciphers
# => [["ADH-AES256-GCM-SHA384", "TLSv1.2", 256, 256], .. aNULL cipher suites ..]

new_ctx = ssl_ctx.dup
p new_ctx.ciphers
# => [["ECDHE-ECDSA-AES256-GCM-SHA384", "TLSv1.2", 256, 256], .. the default cipher suites ..]
~~~



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